1 // Copyright 2014 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "base/basictypes.h" 6 #include "base/bind.h" 7 #include "base/logging.h" 8 #include "base/strings/string_number_conversions.h" 9 #include "mojo/examples/window_manager/window_manager.mojom.h" 10 #include "mojo/public/cpp/application/application.h" 11 #include "mojo/services/public/cpp/view_manager/node.h" 12 #include "mojo/services/public/cpp/view_manager/node_observer.h" 13 #include "mojo/services/public/cpp/view_manager/view.h" 14 #include "mojo/services/public/cpp/view_manager/view_manager.h" 15 #include "mojo/services/public/cpp/view_manager/view_manager_delegate.h" 16 #include "mojo/services/public/cpp/view_manager/view_observer.h" 17 #include "mojo/services/public/interfaces/navigation/navigation.mojom.h" 18 #include "ui/events/event_constants.h" 19 #include "url/gurl.h" 20 #include "url/url_util.h" 21 22 using mojo::view_manager::Node; 23 using mojo::view_manager::NodeObserver; 24 using mojo::view_manager::View; 25 using mojo::view_manager::ViewManager; 26 using mojo::view_manager::ViewManagerDelegate; 27 using mojo::view_manager::ViewObserver; 28 29 namespace mojo { 30 namespace examples { 31 32 class EmbeddedApp : public Application, 33 public ViewManagerDelegate, 34 public ViewObserver, 35 public NodeObserver { 36 public: 37 EmbeddedApp() : view_manager_(NULL) { 38 url::AddStandardScheme("mojo"); 39 } 40 virtual ~EmbeddedApp() {} 41 42 void SetNodeColor(uint32 node_id, SkColor color) { 43 pending_node_colors_[node_id] = color; 44 ProcessPendingNodeColor(node_id); 45 } 46 47 private: 48 class Navigator : public InterfaceImpl<navigation::Navigator> { 49 public: 50 explicit Navigator(EmbeddedApp* app) : app_(app) {} 51 private: 52 virtual void Navigate( 53 uint32 node_id, 54 navigation::NavigationDetailsPtr navigation_details, 55 navigation::ResponseDetailsPtr response_details) OVERRIDE { 56 GURL url(navigation_details->url.To<std::string>()); 57 if (!url.is_valid()) { 58 LOG(ERROR) << "URL is invalid."; 59 return; 60 } 61 // TODO(aa): Verify new URL is same origin as current origin. 62 SkColor color = 0x00; 63 if (!base::HexStringToUInt(url.path().substr(1), &color)) { 64 LOG(ERROR) << "Invalid URL, path not convertible to integer"; 65 return; 66 } 67 app_->SetNodeColor(node_id, color); 68 } 69 EmbeddedApp* app_; 70 DISALLOW_COPY_AND_ASSIGN(Navigator); 71 }; 72 73 // Overridden from Application: 74 virtual void Initialize() MOJO_OVERRIDE { 75 ViewManager::Create(this, this); 76 // TODO(aa): Weird for embeddee to talk to embedder by URL. Seems like 77 // embedder should be able to specify the SP embeddee receives, then 78 // communication can be anonymous. 79 ConnectTo<IWindowManager>("mojo:mojo_window_manager", &window_manager_); 80 AddService<Navigator>(this); 81 } 82 83 // Overridden from ViewManagerDelegate: 84 virtual void OnRootAdded(ViewManager* view_manager, Node* root) OVERRIDE { 85 View* view = View::Create(view_manager); 86 view->AddObserver(this); 87 root->SetActiveView(view); 88 root->AddObserver(this); 89 90 roots_[root->id()] = root; 91 ProcessPendingNodeColor(root->id()); 92 } 93 94 // Overridden from ViewObserver: 95 virtual void OnViewInputEvent(View* view, const EventPtr& event) OVERRIDE { 96 if (event->action == ui::ET_MOUSE_RELEASED) 97 window_manager_->CloseWindow(view->node()->id()); 98 } 99 100 // Overridden from NodeObserver: 101 virtual void OnNodeActiveViewChange( 102 Node* node, 103 View* old_view, 104 View* new_view, 105 NodeObserver::DispositionChangePhase phase) OVERRIDE { 106 if (new_view == 0) 107 views_to_reap_[node] = old_view; 108 } 109 virtual void OnNodeDestroy( 110 Node* node, 111 NodeObserver::DispositionChangePhase phase) OVERRIDE { 112 if (phase != NodeObserver::DISPOSITION_CHANGED) 113 return; 114 DCHECK(roots_.find(node->id()) != roots_.end()); 115 roots_.erase(node->id()); 116 std::map<Node*, View*>::const_iterator it = views_to_reap_.find(node); 117 if (it != views_to_reap_.end()) 118 it->second->Destroy(); 119 } 120 121 void ProcessPendingNodeColor(uint32 node_id) { 122 RootMap::iterator root = roots_.find(node_id); 123 if (root == roots_.end()) 124 return; 125 126 PendingNodeColors::iterator color = pending_node_colors_.find(node_id); 127 if (color == pending_node_colors_.end()) 128 return; 129 130 root->second->active_view()->SetColor(color->second); 131 pending_node_colors_.erase(color); 132 } 133 134 view_manager::ViewManager* view_manager_; 135 IWindowManagerPtr window_manager_; 136 std::map<Node*, View*> views_to_reap_; 137 138 typedef std::map<view_manager::Id, Node*> RootMap; 139 RootMap roots_; 140 141 // We can receive navigations for nodes we don't have yet. 142 typedef std::map<uint32, SkColor> PendingNodeColors; 143 PendingNodeColors pending_node_colors_; 144 145 DISALLOW_COPY_AND_ASSIGN(EmbeddedApp); 146 }; 147 148 } // namespace examples 149 150 // static 151 Application* Application::Create() { 152 return new examples::EmbeddedApp; 153 } 154 155 } // namespace mojo 156